linux-kernel - Re: [JANITOR-PATCH] rtc: switch to unlocked

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Date:	Thu, 6 Mar 2008 08:16:58 +0000
From:	Russell King <rmk+lkml@....linux.org.uk>
To:	Andi Kleen <ak@...e.de>
Cc:	Jiri Slaby <jirislaby@...il.com>,
	Harvey Harrison <harvey.harrison@...il.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [JANITOR-PATCH] rtc: switch to unlocked_ioctl

On Wed, Mar 05, 2008 at 11:16:45AM +0100, Andi Kleen wrote:
> One easy way to do that is to do an allyesconfig build once and
> save the log

Don't bother.  As I keep saying and have been saying since the all*config
targets were introduced, they're useless for ARM, because ARM is soo
diverse.

You need to find a platform configuration which uses the file.

Eg,

$ grep rtctime arch/arm/common/Makefile
obj-y                           += rtctime.o

In this case, any one will do.

But lets say you modify arch/arm/common/uengine.c:

$ grep uengine arch/arm/common/Makefile
obj-$(CONFIG_ARCH_IXP2000)      += uengine.o
obj-$(CONFIG_ARCH_IXP23XX)      += uengine.o
$ grep CONFIG_ARCH_IXP2000= arch/arm/configs/*
arch/arm/configs/ixp2000_defconfig:CONFIG_ARCH_IXP2000=y
$ grep CONFIG_ARCH_IXP23XX= arch/arm/configs/*
arch/arm/configs/ixp23xx_defconfig:CONFIG_ARCH_IXP23XX=y

So now you know you need to use ixp2000_defconfig or ixp23xx_defconfig as
a basis for building uengine.c.  (which is reasonable because it's an
IXP2000 or IXP2300 specific support file.)

-- 
Russell King
 Linux kernel    2.6 ARM Linux   - http://www.arm.linux.org.uk/
 maintainer of:
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